bump github; fix user agents; tweak egg

#### Bumped Github
* Fix User-Agent issue
* Add ``~grate`` command to see current API rate-limiting status
* Tidy code

#### Canonicalize Depressionbot
 * Contemplate adding CANONICAL AUBERGINE before deciding against it because who the hell has aubergine as a corporate colour
 * Colour progress bars orange when canonical mode is activated